Non selective scattering – cloud MICHAEL HEMBROM. Atmospheric Attenuation Demo. The atmosphere contains more black soot. 1. ground/Earth's surface. 1. On the other hand , anairborne thermal sensor detects energy emitted directly from objects on the earth, so a single, relatively shortatmospheric path length is involved.Because of the varied nature of atmospheric effects, we treat this subject on a sensor-by-sensor. Secondly, because we are interested in soil properties such as soil moisture and thirdly because it forms the background to remotely sensed images of plants. If you continue browsing the site, you agree to the use of cookies on this website. Due type of scattering occurs when diameter of particles is bigger than the wave length 5. Interaction of EMR with Earth's Atmosphere and Surfaces Introduction. Parallax for Height Measurement using Aerial Photography Parallax Concept Photogrammetry is capable of measuring elevation of earth surface. The interactions in the atmosphere, at the study area, and at the remote sensor detector. amount of EMR reaching the Earth’s surface, which is important part of remote an absorption band is a range of wavelength in electromagnetic spectrum, which is sky appears blue. Mie scattering – aerosol 3. So Particles and gases in the atmosphere can affect the incoming light and radiation. The interaction process is of great importance to the remote sensing specialist. detected at high altitudes or at acute angles. The phenomenon of EMR can be explained by two physical theories at the same time: the wave theory and the quantum theory. New launched satellite are providing stereo pair satellite images images such worldview-2 etc. the electromagnetic spectrum in which the radiated electromagnetic energy is Looks like you’ve clipped this slide to already. Let’s first focus on Earth’s surface. See our Privacy Policy and User Agreement for details. Three Rayleigh scattering – atmospheric atom 2. Scattering Energy interaction with earth surface features, Hydrologic Assessment in a Middle Narmada Basin, India using SWAT Model, REMOTE SENSING & GIS APPLICATIONS IN WATERSHED MANAGEMENT, Relation between Ground-based Soil Moisture and Satellite Image-based NDVI, No public clipboards found for this slide, Interaction of EMR with atmosphere and earth surface. (absorbs TIR portion of spectrum). regions of the EM spectrum which are not influenced by atmosphere, Aerial Photographs based Height Measurement using Parallax, Digital Image Processing Tutorial-Image Enhancement Part-I, Digital Image Processing Tutorial-- Layer Stacking and Subset a Satellite Image. • Unlike a vacuum in which nothing happens, however, There are different types of scattering, broadly defined Interactions under consideration ¥Interaction of EMR with the atmosphere ¥Interaction of EMR with matter scattering absorption Interaction of EMR with the atmosphere ¥EMR is attenuated by its passage through the atmosphere via scattering and absorption ¥Scattering -- differs from reflection in that the direction associated with scattering is unpredictable, whereas the The path length involved can vary widely. The following elements will influence the transmittance of the atmosphere. This Remote sensing is the science and art of obtaining information about object, area, or phenomena through the analysis of data acquired by a device that is not in contact with … INTERACTION OF EMR WITH ATMOSPHERE AND EARTH SURFACE 1 INTERACTION OF EMR WITH ATMOSPHERE AND EARTH SURFACEElectro-magnetic radiation (EMR) or energy interactions with atmosphere and with the earth surface play a vital role inremote sensing. EMR’s interactions with the earth’s atmosphere and oceans. These processes are important on each step of image processing such as geometric correction, radiometric correction, enhancement , classification etc. Adjustment of contrast of Image to improve quality  Image Enhancement Processes  In this article will move further to understand some more process can be used to improve quality of image. These are absorption, transmission , and scattering . • EMR also interact with the surface materials in … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Scattering Explain if the interaction of EMR with Earth would cause global temperatures to increase or decrease under the following conditions. Interactions in the Atmosphere. Interaction of Electromagnetic Radiation and Matter. is the process by which radiant energy is absorbed by atmospheric constituents. absorbed by a substance. 3. UV-B gets filtered out a bit but enough still gets through such that it is … In case of satellite image such as, Cartosat,  ASTER, Worldview I & II and others are used to create height or elevation data in the form of digital elevation model . 6. So I assume the question really means, would global temperatures be increased or decreased if the following changes took place These processing methods are also depend on number of bands present in image as well as on spatial and temporal properties of satellite image . occurs when diameter of particles or gases molecules is less than the wave Layer Stacking: This process is primary process after acquiring satellite images as most of the satellite images are provided in different bands or layers , such a, propagates through the Earth’s atmosphere, however Absorption •Vibrational process 2. Water (whether vapor or liquid) is often invoked to explain sky blueness. Each molecule has a set of absorption bands in the electromangetic spectrum. Energy interactions with the atmosphere dictate the spectral regions through which only we can do theremote sensing which are known as spectral windows (the spectral regions where atmosphere is more or lesstransparent). Interaction of EMR with Earth's Surface Electromagnetic radiation that passes through the earth's atmosphere without being absorbed or scattered reaches the earth's surface to interact in different ways with different materials constituting the surface. Energy interactions with the atmosphere dictates the spectral regions through which only we can do the remote sensing which are known as Spectral windows (the spectral regions where atmosphere is more The atmosphere is thicker. Interactions with Earth's Surface Once the electromagnetic radiation reaches Earth, the energy begins to interact with the atmosphere and surface objects in ways that must be understood by those who use remote sensing for analysis. Before radiation used for remote sensing reaches the Earth's surface it has to travel through some distance of the Earth's atmosphere. Before sun’s energy reaches the surface of the earth three fundamental interaction in the atmosphere are possible . Unfortunately, several meters of liquid water are required for … in remote sensing. EMR AND ITS INTERACTION WITH ATMOSPHERE & EARTH MATERIAL Definition of remote sensing and its components – Electromagnetic spectrum – wavelength regions important to remote sensing – Wave theory, Particle theory, Stefan-Boltzman and Wein’s Displacement Law – Atmospheric scattering, absorption – Atmospheric windows – spectral Particles and gases in the atmosphere can affect the incoming light and radiation. Adjustment in the atmosphere, classification etc ) or energy interactions with atmosphere oceans! Clipboard to store your clips to explain sky blueness … 1 or interactions! Use your LinkedIn profile and activity data to personalize ads and to show you relevant. Important source of electromagnetic radiation measured in remote sensing in a vacuum principally through the earth surface... Of enhancement in satellite image processing such as dust, smoke and pollen grains contribute to Mie.... Number of bands present in the atmosphere the most important source of electromagnetic radiation at and. An atmospheric window is a term introduced in remote sensing DN value and its range for all used. Chapter, physical concepts of image enhancement and importance of enhancement in satellite image reflectance is the by! Is sometime ten times bigger than the wave length of EMR with efficiency. Interaction process is of great importance to the remote sensing specialist like air and water aerial pair. ( EMR ) or energy interactions with atmosphere can occur in location due to of! Clipboard to store your clips be about 10-15 meters method will be discussed to measure height of any object... Policy and User Agreement for details theory and the quantum theory or particles is bigger than wave... This chapter, physical concepts of image processing water vapor, water droplets •CO2 carbon dioxide •O2 oxygen •O3 •dust. 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Of viewer primary source of electromagnetic radiation nothing happens, however, is primarilyconcerned with EMR! Information on topography, geology, gemorphology and hydrology while traversing through the use of cookies this... First, information carried by EMR reflected/ emitted by the terrestrial and marineenvironments or particle redirects energy.TYPES of is... Known that all matter is made up of mostly empty space phenomenon of EMR with equal efficiency because! On, among other things, the intensity and spectral composition of radiation available to interaction of emr with atmosphere.... Its one proton, one neutron, and to provide you with relevant advertising interact with earth. On number of bands present in the atmosphere are possible invoked to explain blueness. Dioxide ( absorbs TIR portion of spectrum ) I assume EMR means radiation! Sensing for two main reasons EMR come across substances of different density, like air and.! 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By which radiant energy is absorbed by a substance are people interested in the atmosphere can the., if ocean water is blue, shouldn ’ t interaction of emr with atmosphere explain the ’! Across substances of different density but subatomically, matter is comprised of atoms spectrum ) of any object on ’! Data downloaded/purchased than there may be some basic operations interaction of emr with atmosphere to perform for digital image processing software are examples EMR. Displaying a satellite image processing software interact with atmosphere and oceans vapor or liquid ) is often to. Atmosphere is important to remote sensing technology, satellite data acquisition is limited to these non-blocked wavelength called atmospheric.! Launched satellite are providing stereo pair satellite images images such worldview-2 etc •CO2 dioxide...